<!DOCTYPE html>
<html>
    <head>
        <title></title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    </head>
    <body>
        <div>TODO write content</div>

        <script>
            var A = function() {
                this.value = 1;
            };
            A.prototype.constructor = A;
            A.prototype.test = function() {

            };
            var B = function() {
               A.call(this);
            };
            B.prototype = new A;
            B.prototype.constructor = B;
            B.prototype.test = function() {
                A.prototype.test.call(this);
            };
            var b = new B();
            b.v

        </script></body>
</html>